1879085820 has 96 divisors (see below), whose sum is σ = 5597980416. Its totient is φ = 469324800.

The previous prime is 1879085779. The next prime is 1879085821. The reversal of 1879085820 is 285809781.

It is a self number, because there is not a number n which added to its sum of digits gives 1879085820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1879085821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210855 + ... + 219585.

It is an arithmetic number, because the mean of its divisors is an integer number (58312296).

Almost surely, 2^1879085820 is an apocalyptic number.

1879085820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1879085820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2798990208).

1879085820 is an abundant number, since it is smaller than the sum of its proper divisors (3718894596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1879085820 is a wasteful number, since it uses less digits than its factorization.

1879085820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8971 (or 8969 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 48.

The square root of 1879085820 is about 43348.4235007457. The cubic root of 1879085820 is about 1234.0010761181.

The spelling of 1879085820 in words is "one billion, eight hundred seventy-nine million, eighty-five thousand, eight hundred twenty".